Skylark L4-144 2.4L DOHC VIN T SFI (1997)
21. Remove the camshaft housing and the gasket.
NOTE: Do not attempt to repair the camshaft, replace if damaged. If a new camshaft is installed, all of the valve lifters actuated by the camshaft
must also be replaced.
22. Inspect the following camshaft components for damage:
^
The sprocket
^
The keyway and the threads
^
The camshaft position sensor reluctor
23. Inspect the camshaft bearing surfaces and the camshaft lobes for the following damage:
^
Wear
^
Galling
^
Gouges
^
Overheating or discoloration
NOTE: If a new camshaft has been installed, add the Engine Oil Supplement GM P/N 1052367 or the equivalent to the engine oil. Coat the entire
camshaft with the camshaft and lifter prelube GM P/N 12345501 or the equivalent.
24. Measure the bearing journals diameter with a micrometer. If out of specification, replace the camshaft.
